Ipomoea, Tall Morning Glory 'Sunrise Serenade'

After 15 years of growing Heavenly Blue MG's along a 25 foot long cyclone fence line, we decided to try the Sunrise Serenade.
...Read MoreWe're in zone 3-4 and started them indoors, transplanting them in mid May outdoors. We carefully and thoroughly culled out all the Heavenly Blue's (a daily task). The soil Ph is neutral but did add some P and K (slow release. The SS plants have flourished, now exceeding 8 feet in height but not a single bloom. When can we expect some blooms?
Any enlightenment would be greatly appreciated.

I planted the seeds in a container then transferred all the
plants close to my back fence. The leaves are blue green, a little fu...Read Morezzy and some are 5 to 6 inches across in a heart
shape. One of the most beautiful double flowers I have ever seen and the foliage is wonderful.

Doesn't seem to grow as quickly as other MG's, but beautiful blossoms all the same.It's probably because I have mine in a hanging contain...Read Moreer. It does extremely well where I have it; it receives full sun in a south facing location. Though, it seems to require more water than I expect it to.

If you don't give it anything to climb up, it wraps around itself and mounds very nicely, making it very full.

Soemtimes I even get single blooms, though I haven't noticed any pattern as to why yet. The single blooms are just as pretty as the doubles, in my opinion.

Note: The first few blooms on this plant usually are "singles" rather than the shredded type you begin to see later. This has prompted ...Read Morea few growers to think they got the wrong plant. Patience!!!! The blooms will become more and more shredded as the plant matures.